Know-How to Convert OST to PST Manually- As you already know that many users complaint of experiencing multiple Outlook errors and due to these issues, the users are unable to access their OST items. This is one of the major reasons why most users look for a direct way to convert OST to PST. There are so many ways in which the user can convert OST to PST, however, we will discuss how to convert OST to PST manually and recommend an automated tool that will help you convert data safely.